• Warbirds Library V4 (Resources for now) How to


    We just posted part one of the how to on uploading new files to the Library. Part 1 covers adding new files. Part 2 will cover making changes to your the uploads you own.


    Questions or comments please post them in the regular forums. Which forum is that... Well it is the one you spend the most time in.

    Thanks the Staff

    Library How to

DMFS BAC 1-11 FSX Upgrade

Aharon said:
--- While I can see the bubble window telling me the mouse indication for negative or positive for "R" knob, it does NOT tell me the number of feet per minute. I can used "A' knob to set to 8,000 ft but the "R" knob does not tell me number of feet per minute.

Regards,

Aharon
Click to expand...
The knob only has a mouse tip for + or -

1 Set desired cabin altitude FIRST

2 ensure safety valve is CLOSED

3. look at the little cabin VSI gauge to the lower right as you click on the "R" rate knob (+ for climbing) to set the rate of cabin climb; the vsi needle should move as you click on the "R" knob
 
Last edited:
Mike71 said:
The knob only has a mouse tip for + or -

1 Set desired cabin altitude FIRST

2 ensure safety valve is CLOSED

3. look at the little cabin VSI gauge to the lower right as you click on the "R" rate knob (+ for climbing) to set the rate of cabin climb; the vsi needle should move as you click on the "R" knob
Click to expand...

I wish this extremely useful tip is written in the manuals!!! Many thanks for the answer, Mike 71

3. look at the little cabin VSI gauge to the lower right as you click on the "R" rate knob (+ for climbing) to set the rate of cabin climb; the vsi needle should move as you click on the "R" knob
Click to expand...

That poses a new question I want 2,000 ft per minute climb after take off. Will the cabin altitude setting to 500 ft per minute affect my desired climb rate after take off or is it separate function?

Regards,

Aharon


 
Last edited:
Aharon said:
I wish this extremely useful tip is written in the manuals!!! Many thanks for the answer, Mike 71



That poses a new question I want 2,000 ft per minute climb after take off. Will the cabin altitude setting to 500 ft per minute affect my desired climb rate after take off or is it separate function?

Regards,

Aharon
Click to expand...
The cabin will start to climb at the set rate until it reaches the psi limit of 7.5psi, independent of the aircraft rate of climb - that is the whole idea of the system.

I suggest anyone who is unfamiliar with details of pressurization read this web post: https://www.cfinotebook.net/notebook/operation-of-aircraft-systems/pressurization.

One gross misunderstanding about pressurization in airliners, especially by the typical passenger, is the need for it. The assumption is, "well, this not just enough oxygen up there so we need it." WRONG- there is plenty of oxygen - how the hell do they think jet fuel burns without it?

The problem is oxygen in the lungs needs to be under enough pressure to saturate the blood vessels in the lungs so the blood system has an adequate supply; if not, that is hypoxia. Hypoxic people do not feel like thy are choking or suffocating - they just loose mental and physical capability, and quickly - that is why it is termed insidious.

Military pilots go through high altitude refresher training every few years and usually get to see or are chosen to be the guinea pig by taking off one's oxygen mask and play patty cake with another sitting beside them (under the direct supervision of a supervisor). Watching what happens is quite an education. The supervisor will instantly step in and re-attach the person's mask when he knows when the limit has been reached.

Tactical jet pilots are required to have their mask on AT ALL TIMES from takeoff to landing in case of cabin pressure failure; also a good way to loose your helmet - with your head still in it - in case of ejection!

The movie "TOP GUN" shows too much of this mask off macho crap - that is not the way it is in real life.
 
You must log in or register to reply here.
Back
Top